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/*
* Copyright (C) 2022, Tencent.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0 which is available at
* https://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package org.eclipse.jgit.internal.storage.commitgraph;
import org.eclipse.jgit.lib.AnyObjectId;
import org.eclipse.jgit.lib.ObjectId;
/**
* Support for the commit-graph v1 format.
*
* @see CommitGraph
*/
class CommitGraphV1 implements CommitGraph {
private final GraphObjectIndex idx;
private final GraphCommitData commitData;
private final GraphChangedPathFilterData cpfData;
CommitGraphV1(GraphObjectIndex index, GraphCommitData commitData,
GraphChangedPathFilterData cpfData) {
this.idx = index;
this.commitData = commitData;
this.cpfData = cpfData;
}
@Override
public int findGraphPosition(AnyObjectId commit) {
return idx.findGraphPosition(commit);
}
@Override
public CommitData getCommitData(int graphPos) {
if (graphPos < 0 || graphPos >= getCommitCnt()) {
return null;
}
return commitData.getCommitData(graphPos);
}
@Override
public ObjectId getObjectId(int graphPos) {
return idx.getObjectId(graphPos);
}
@Override
public ChangedPathFilter getChangedPathFilter(int graphPos) {
return cpfData.getChangedPathFilter(graphPos);
}
@Override
public long getCommitCnt() {
return idx.getCommitCnt();
}
}
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